LifeAncient 'weirdo' reptile graduated from 4 legs to 2 in adolescenceSonselasuchus cedrus, discovered in fossils from Arizona, was a crocodile relative from the Triassic period that grew into an ostrich-like adult News
LifeA horse's whinny is unlike any other sound in nature Horses use their larynx to make two sounds simultaneously, so they are effectively singing and whistling at the same time News